Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan, quang cua
phung cong » nhung cong, phong cong, nhung chong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tung tuan » trung tuan, hung tuan, trang tuan
hung cong » nhung cong, hung cuong, dung cong
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) ((hung cong) OR (phung cong)) tac than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) ((hung cong) or (phung cong)) tac than cau~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((tung tuan) OR (quang tuan)) ((hung cong) or (phung cong)) tac than cau*.